I would go a sporty with the outfit. Like jeans and a Puma zippy, no hoodies, that would be too casual and a pair of heels instead of tennis shoes so you don't look totally frumped out but the Puma zippy will give it a sportier feel.
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I'm thinking balls are to men what purses are to women. It's just a little bag, but we feel naked in public without it.
Carrie Bradshaw